1
How can friction loss in a system be minimised?
2
Identify the true statement.
3
Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
5
Which of the following is one correct method to avoid cavitation?
6
Select the three parameters of most interest in water pumping systems:
7
How is the relationship between these three factors described in an equation?
8
What are the effects of cavitation on pumps?
Test results
Congratulations. You have passed the test and completed the Basic hydraulics and pump performance
Achieved badges:
01.
Q: How can friction loss in a system be minimised?
A: By increasing the pipe diameter
01.
Q: How can friction loss in a system be minimised?
A: By using 2 smaller pumps instead of one bigger pump
01.
Q: How can friction loss in a system be minimised?
A: By adding a Tee to the piping system
02.
Q: Identify the true statement.
A: In deep-well pumps, you should check whether the pressure gauge is installed directly at the pump discharge.
02.
Q: Identify the true statement.
A: Online monitoring equipment does not check if a parameter has changed or exceeded a preset limit.
02.
Q: Identify the true statement.
A: If all the parameters are recorded immediately after the pump has been installed, you can use them as benchmark against future data.
03.
Q: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
A: Temperature sensors
03.
Q: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
A: Signal wire
03.
Q: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
A: Insulation system
04.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Viscosity
04.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Velocity
04.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Volume
05.
Q: Which of the following is one correct method to avoid cavitation?
A: Reduce the friction loss in the suction pipe.
05.
Q: Which of the following is one correct method to avoid cavitation?
A: Increase the flow of the pump.
05.
Q: Which of the following is one correct method to avoid cavitation?
A: Lower the elevation of the suction water level.
06.
Q: Select the three parameters of most interest in water pumping systems:
A: Flow, head and energy
06.
Q: Select the three parameters of most interest in water pumping systems:
A: Flow, conductivity and head
06.
Q: Select the three parameters of most interest in water pumping systems:
A: Head, turbidity and velocity
07.
Q: How is the relationship between these three factors described in an equation?
A: P = Q x H x c
07.
Q: How is the relationship between these three factors described in an equation?
A: Q = H x P x c
07.
Q: How is the relationship between these three factors described in an equation?
A: P = Q/H x c
08.
Q: What are the effects of cavitation on pumps?
A: Breakage of rotor
08.
Q: What are the effects of cavitation on pumps?
A: Pitting of suction pipe
08.
Q: What are the effects of cavitation on pumps?
A: Pitting of impeller and pump housing